Temperature indicator for nursing bottles



Aug. 11, 1953 F cH 2,648,226

TEMPERATURE INDICATOR FOR NURSING BOTTLES Filed Nov. 26, 1948 IN VEN TOR.

P .R" /z, Bye/ 3y? no WWII-a711, if s I Patented Aug. 11, 1953 1 UNITED sT TEs PATENT o Fice Q TEMPERATURE INDICATOR- FOR NURSING j l BOTTLES Percy R. Finch, Chicago, Illl, assignor to Eric Glasser, Chicago, Ill.

ApplicationNovember 26, 1948, Serial no. 62,069

40mins. (o1. wa -343) This invention relates to new and useful improvements in infants nursing bottles, and has particular relation to a cap for such bottles with a nipple adapted to be removably mounted on the cap and temperature indicating means built in as a part of the cap.

Infants nursing bottles embodying temperature indicating means for indicating the temperature of the contents of the bottle have been previously proposed. Such devices, however, have usually had the temperature indicating means on the outside of the bottle or within the thickness of the wall of the bottle. As a result, special construction of the bottle is usually required and the temperature indication is not always obtained in the desired manner.

One of the main objects of the present invention is to provide an improved form of device of the class described, which will always indicate the temperature of the contents of the bottle accurately, and wherein special construction of the bottle is avoided.

Another object of the invention is to provide a cap adapted for application to existing forms of infants nursing bottles, with a nippleadapted to be removably mounted on the cap and temperature indicating means built in as a part of the cap and in such manner as not to interfere with proper positioning of the nipple or with removal of the nipple, for example, for sterilization purposes.

Another object of the invention is to provide a device of the character described, in which the temperature indicating means is in the form of an immersion type thermometer having a tube of stainless steel or like material for sanitation and sterilization enclosing a bimetal coil and carried by the cap to be positioned within the nursing bottle and in contact with the contents thereof, and to be withdrawn from the bottle by application and removal of the cap.

Another object of the invention is to provide an improved form of device having various features of novelty and advantages, and which is particularly characterized by its simplicity in construction, its economy in manufacture, and its effectiveness in use.

Further objects and advantages of the invention will appear from the following detailed description, taken in connection with the accompanying drawing, which illustrates the manner of constructing and using an illustrative embodiment of the invention.

In the drawing:

Figure 1 is a side elevational view partially in 2 a section showing one form of infants nursing bottle provided with a cap having one form of nipple and temperature indicating means :em bodying the present invention;

'Figure 2 is an enlarged fragmentary .detail section through the temperature indicating meansand the adjacent portions of the cap, bottleand nipple; and .4

.Figure 3 is a, fragmentary'top plan view show ing the temperature indicating dial and pointer.

Referringnow to the drawing, the numeral I denotes a nursing bottle formed of glass or other suitable material and provided with'a neck 2 defining the mouth 3 of the bottle. 1

The bottle I may be of any existing or other suitable form, and it is a feature of this invention to provide a clamping ring 4 adapted for application to existing forms of infants nursing bottles and having temperature indicating means 5 built in as a part of the cap, and a nipple B removable from both the cap and the "tempera ture measuring means, for example, for steriliza tion. The ring 4 is shown with an integral annular flange provided with internalthread means I for screw-on engagement with cooperating external thread means 8 on the neck of the bottle. It is to be understood, however, that'thering 4, instead of being of the screw-on type as shown in'the drawing, may be of the slip-on or of any other desired type. i I v The ring 4, which may be molded of plastic material, such as Bakelite, or formed of stainless steel or other suitable material, has an integral outer wall 9 provided with an opening III at the axis of the ring. The nipple 6 is formed of rub-- her or other suitable material, and is removably mounted on ring 4, with the interior of the nipple in communication with the interior of the bottle through the opening Ill. The nipple 6 has at its inner end an integral radially extending flange I I positioned to be interposed between the cap and the bottle to seal the joint therebetween when the ring is applied to the bottle. The radially extending flange l I has an opening I2 eccentric with respect to the axis of the ring 4 and out of register with the opening 10.

The temperature indicating means is shown in the form of an immersion thermometer comprising a tube l3 formed of material of the character of stainless steel. The tube l3 encloses a blmetal coil l4 and has its outer end built or molded in at l5 as a part of the ring 4 and sealed against entry of the contents of the bottle into the tube l3 where such contents might deleteriously affect the coil 14. The tube the tube has direct contact when the ring 4 is applied to the bottle.

For the purpose of indicatingat all times-the temperature of the contents of the bottle, the device has a dial 1! built or molded in at 20 as a part of the ring 4 and visible'irom' outside-1:;

the ring, for example, through a glass'or'oth'er transparent window 2|. The window ilmnay be built or molded in as a part of the ring 4, or it may be removable. The outer end of the shait or rod IT projects through an opening 22 in the diat ll; and carries a pointer 23*which moves over the dial "ll 'andnby theitemperature markings 34 -n theouternsurtace of-"the diaL indicates the temperature: or? the contents of the bottle.

- Im-use, the 'temperature indicating means makes it possiblvaccuratelyio maintain liquid infants foods within theizhottleaiat thei desired faeding temperature"(nsually 98.6" F.) at all times; and feeding of the infant with liquid food which is either too" cold 'or :too hot is avoided. The tissues ot theimouth, throat and stomach otan -iniant are tender; and colic andvarious stomach disorders have .been thetresult ot teeding'with -liquids whichi'are too hot or' too" cold. uesswork; in :n'sc'ertaining the-temperature 'of the liquid, for example, by squirting some of i the liquidnon the: arm: or'wrist before :reeding: it to the infantisalsoavoided.

The embodiment: ofi the invention shown in the drawing). is for illustrative purposes-only, and it-= is to-:be expresslyunderstood that said -d-rawins" and the accompanying specification-are not to'dmcconstrueda as a definition of the. limits or scope'of the invention; reference beingha'd to the appended-claims for that purpose.

- I claim:

- lain a nursing bottle. havingian opening in the top; the-combination comprising. a; nipple having a flange circumferentially thereot resting- 4 on the top of said bottle and circumscribing said opening, a clamping ring threaded on said bottle, said ring having an annular flange resting on the flange of said nipple, there being an aperture through the flange of said nipple, and the flange of said ring having a thermometer mounted thereon with its temperature sensitive ele- .ment e'xtending;through said aperture and into said bottle.

2. The combination with a nursing bottle according to claim 1, wherein the thermometer has temperaturertindicating means mounted in the clamping ring and visible through an outwardly directed opening in said ring.

BZ II'he' cOmbInatiOn with a nursing bottle according to claim 1, wherein the thermometer comprises. a'tube'closed at its inner end and having an open outer end secured to the clamping ring "and a bimetal coil enclosed within said tubeand connected at its outer end to temperature iiidicatmg means mounted in said clamping ring andvisible thro1igh an=upwardly dirct'e d'openin'g in said ring.

4: For use witlra -nursing' bottlehaving -an cpening in 'the'top and a nipple having a flange circumferentially thereof-for resting onthe top oi 'thbottlexand' circumscribing theopening, and-= wherein I "thereis an "aperture through "the flange of the'nippley clamping-ring" having means for attaching it to the 'bo'ttle, said ring having an annular flange tor-resting on' the flange ot 'the nipple; 'the=flange-'otsaid ring having a thermometer mounted thereon with its tem perature seiisitive element arranged to extend throughthe "aperture through the flange of the nipple and into the bottle when s'a'id ring is attached tothe bottle.

References Citedtimtheflle ofithisipatent "UNITED STATES PATENTS Number Name 'Date 1,828,628 'Iorgerson. Oct-.20, 1931 2,093,730 -.Kurkjian.. Sept. 21, 1937 2,179,158 T .Marks Nov. 7,4939

3: FOREIGN PATENTS Nur'nber Country Li Date 129,516 T"'France Aug;'2 2, .1925 

